Fluid pressure operated dispenser



July 3, 1956 L. D. BARTLETT FLUID PRESSURE OPERATED DISPENSER Filed July 13, 1954 6' qNVENTOR $6M) Wt 6 ATTQRNEY FLUID PRESSURE OPERATED DISPENSER Lawrence D. Bartlett, Hartford, Ky. Application July 13, 1954, Serial No. 443,027

7 Claims. (Cl. 222-82) This invention relates to improvements in portable fluid pressure operated dispensing means for standard sized containers filled with low-viscosity free flowing substances, such as oil.

The average gasoline filling station today sells motor oil of various viscosities not only in bulk and five quart containers, but also in one quart containers, as well. This invention relates to a device that isto be utilized with these small-sized quart oil cans and which is very practical for use where a portable container providing a constant supply of oil under pressure is desired.

The primary object of the invention is to provide a unitary device readily disassembled and thereby adapted to receive any standard sized oil can.

Another object of the invention is to provide a tubular piercing means including an enlargement as an element of the dispensing means for puncturing cans to which the device is to be attached.

Still another object of the invention is to provide combined manually operated liquid dispensing means and pressure relief valve means automatically actuatable upon excessive pressure being placed upon the contents of the can.

These and other objects and advantages will become apparent upon a more complete disclosure of the invention which is illustrated in the attached sheet of drawing, wherein Fig. 1 is a part elevation and part sectional view of the dispenser, and

Fig. 2 is a plan view of a portion of the dispenser.

The portable dispenser forming this invention has a cap 1 axially apertured, as at 2, and is provided at its perimeter with a depending circumferential collar 3, for a purpose that is apparent from an examination of Fig. l. Projecting above the cap 1 and integral therewith is a radially extending leg 4 at the dependent extremity of which is provided a handle 5. Inasmuch as the elements constituting the cap and its handle are integral this portion of the device may be made by molding of any suitable metal, uch as cast iron, aluminum, etc.

The hand gripping means illustrated at 5, depending upon the manner in which the assembly is manufactured, is provided with a cylindrical bore 6 extending from the base of the handle to a point substantially coplanar with the collar 3 of the cap 1 and has a shoulder 7 that is interconnected with a smaller bore 8 which in turn communicates with an axial aperture 9. Within the bore 6 is confined a helical spring 10 surrounding a shaft 11, said spring being interposed between an annulus 12, afiixed as at 13, to the bottom of the gripping means or handle and a shoulder 14 of shaft 11 to which a pumping leather 15, of any suitable construction, is threadedly secured as at 16. Intersecting the axial aper ture 9 is a horizontal stepped bore 17, threaded at 18, for the reception of a closure plug 19. Substantially medially of the bore 17 is threadedly positioned a valve means, generally indicated at A, including a threaded axially apertured plug provided with a recess 21 that is adapted iii-ted States Patent to receive a machined valve seat 22 against which ball valve 23 is urged by spring 24. As shown in the drawing, the stepped bore 17 is substantially reduced in area at 25 to provide a neck 26 for receiving the opposite end of the spring means 24. A vertical bore 27 within the confines of the collar 3 intersects said bore 25 and provides a means for introducing pressure to the container 28 carried on base 29. The base 29 is removably secured to cap 1 by means of a substantially saddle-shaped bar X, threaded at its opposite ends at 30 and to which wing nuts 31 are fastened after the threaded ends of acid bar are positioned within the apertured ears 32 of the cap 1. Surrounding said axial aperture 2 is a frustoconical enlargement 33 integral with said cap 1, the conformation of this enlargement and its exterior undulated surface (not shown) function to position the container relative to the base upon assembly of the device to the container as well as to permit air under pressure to be introduced to the upper area of the can contents. Thrcadedly secured within the confines of the frusto-conical enlargement 33 is a tubular dispensing element 34 the lower extremity of which when it is introduced to a container, as shown in Fig. 1 is only slightly removed from the interior bottom surface of said container for a reason believed to be apparent,

Secured to said tubular dispensing element 34 is a substantially elliptical puncturing means 35 apertured on its longitudinal axis, as at 36, and adapted to be fastened to the tubular dispensing element by means of a set screw 37. Confined within said tubular dispensing means is an apertured sleeve 38 that may be afiixed within the interior base of the dispensing tube by any suitable means, such as shrinking, etc., thereby forming a valve seat 38 for ball valve 39. The axial aperture 2 in the cap 1 is in communication with a bore 40 through which a stub tubular member 41 extends. The upper end of said stub tubular member 41 is threaded into a head 42 to which a flexible pipe 43 carrying an outlet: nozzle 44 is secured by means of a nipple 45. The lower end of stub 41 is circumferentially pronged as at 46 and thereby adapted to retain the ball valve 39 between said prongs and said valve seat.

Disposed about the exterior of said stub means 41 is a helical spring 47 the lower face of which constantly urges the ball valve against seat 38, whereas the upper surface thereof abuts the composition sealing washer 48. Obviously, if desired, the composition washer 48 may be utilized together with other types of washers. although these are not shown in the drawing.

A dispensing handle 49 is provided with depending legs 51) and 51, only one of which is shown in the drawing, that are adapted to receive coplanar pins 52 and 53 positioned on opposite sides of the radial member 4 and about which the handle pivots in a vertical plane. See dotted view of Fig. 1. It is to be observed that handle 49 has a dependent oifstanding portion 54 apertured at 55 to receive stub pipe 41 interposed between head 42 and the upper surface of radial member 4. It is apparent that upon depressing the handle 49 the head and its associated parts will be lifted upwardly permitting the liquid under pressure to be dispensed from the container. The ball valve sealing means 93 serves a dual function in that when the handle i manually actuated dispensing is permitted in the normal manner and when excessive pressure is created within the container, by too diligent an operation of the pumping means, the excess is allowed to escape past this valve which then acts as a relief valve.

For facility in operation of the device and to provide access to inaccessible parts of machinery and other equipment, the pipe 43 is constructed and arranged in such a manner as to permit rotation of the head 42 through an arc exceeding 180".

Various changes and modifications are considered to be within the principle of the invention and the scope of the following claims.

What I claim is:

1. In means for dispensing fluid under pressure from a container, a cap for attachment to said container and provided with oifstanding dependent handle gripping means, means for securing said capto said container, tubular means offstanding downwardly from said cap into said container, said tubular means being provided with an enlargement serving to puncture said container valve means serving normally to close said tubular means, resilient means biasing said valve means to closed position and serving to permit unseating of said valve means in the presence of excess pressure within said container, dispensing nozzle means communicating with said tubular means under control of said valve means, and means for manually relieving the biasing effect of said resilient means upon said valve means to permit emission through said nozzle means of the fluid to be dispensed.

2. In means for dispensing fluid under pressure from a container as claimed in claim 1, wherein stub tubular means depending from said dispensing nozzle means are provided with pronged means for positioning said valve means relative to said tubular means, said stub tubular means including a passage therethrough, said passage being in substantial alignment with said tubular means.

3. In means for dispensing fluid under pressure from a container as claimed in claim 2, wherein a helical spring embraces said stub tubular means and is interposed between said dispensing nozzle means and said pronged means.

4. In means for dispensing fluid under pressure from a container as claimed in claim 2, wherein the valve means comprises a ball, said prongs surrounding said ball.

5. In means for dispensing fluid under pressure from a container as claimed in claim 2, wherein the means for manually relieving the effect of said biasing means comprises pivotally disposed trigger means carried by said cap, one end of said trigger means being interposed between said dispensing nozzle means and said cap.

6. In means for dispensing fluid under pressure from a container as claimed in claim 1, wherein a downwardly oflstanding centrally disposed projection of said cap has a fluted exterior surface.

7. In means for dispensing fluid under pressure from a container, a cap for attachment to said container, said cap including a flange and a seal positioned adjacent to said flange, and offstanding dependent handle gripping means, means for securing said cap to said container including a base and pivotal upstanding means carried thereby associated with said cap to tighten said seal against said cap, tubular means ofistanding downwardly from said cap into said container, valve means serving normally to close said tubular means, resilient means biasing said valve means to closed position and serving to permit unseating of said valve means in the presence of excess pressure within said container, dispensing nozzle means communicating with said tubular means under control of said valve means, and means for mannually relieving the biasing effect of said resilient means upon said valve means to permit emission through said nozzle means of the fluid to be dispensed.

References Cited in the file of this patent UNITED STATES PATENTS 2,539,929 Roberts Jan. 30, 1951 2,586,088 Reeves Feb. 19, 1952 2,632,585 Tomasek Mar. 24, 1953 

